2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/88103The properties of highest-weight representations of the N=2 superconformal algebra in two dimensions can be considerably simplified when re-expressed in terms of relaxed ^sl(2) representations. This applies to the appearance of submodules and hence, of singular vectors, and to the structure of the embedding diagrams and the BGG-type resolution. I also discuss the realization of these representations in the bosonic string, where the generalized DDK prescription amounts to the requirement that the representations have a charged singular vector, and the role of the fermionic screening operator.LaTeX 2e, 16pp. Talk presented at the NATO Advanced Research Workshop on Theoretical Physics `New Developments in Quantum Field Theory', June 14--20, 1997, Zakopane, and IV International Conference `Conformal Field Theories and Integrable Models', Chernogolovka, June 23--27, 1997Quantum AlgebraHigh Energy Physics - Theorytext